Purpose This study aims to examine the human resource information system (HRIS) from the viewpoints of employees in Oman’s civil service sector and the degree to which it increases organizational performance and fosters human resource development. The study clarifies employees’ perceptions of HRIS and examines the relationship between HRIS implementation and organizational effectiveness. Design/methodology/approach A positivist philosophy underpins the study’s research design. A mixed methods case study approach involving surveys administered to fifty male and female employees in the Civil Service Sector was used for data collection. The survey includes three open-ended questions highlighting viable quotes that validate quantitative results. Descriptive statistics and correlation analysis are used to analyze the quantitative data component. Thematic analysis is used to identify the frequency occurrence of words and phrases that reflect HRIS practitioners in this regard. Findings The findings suggest that HRIS increases organizational effectiveness, improves employees’ productivity, and facilitates resource management in decision-making. The findings indicate that HRIS facilitates effective data management, recruitment, and training operations. Significantly, although the sample was taken from one case study in a limited geographical area in Oman, which may jeopardize the generalizability of the findings, the study opens a new horizon of research in this area to validate the results in similar locations. Originality/value The study provides insights into how HRIS contributes to organizational efficiency and human resource development. It spotlights the function of HRIS in enhancing administrative and operational processes within the public sector. This study’s findings benefit legislators, human resources managers, and civil service administrators. It imparts a grasp of the significance of modern HRIS systems in improving organizational performance and staff productivity.